Impact of Effective Spectral function and Transverse Enhancement  on Neutrino Oscillation Parameters in NOνA Experiment

One of the most essential ingredients of precise measurement of neutrino oscillation parameters is the precise knowledge of neutrino energy. Due to heavy nuclear targets, nuclear effects introduce complications that create systematic uncertainties in neutrino energy reconstruction. These uncertainties further influence the determination of neutrino oscillation parameters. In this work, we study the impact of effective spectral function and transverse enhancement on the sensitivity measurement of various neutrino oscillation parameters in the disappearance channel in the NO$nu$A experiment. Together, Effective spectral function and transverse enhancement model give a complete description of nuclear effects. We observe a significant impact of these two in neutrino oscillation measurements.